Developing.ru

Код: Выделить всё

it Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, ComCtrls, ExtDlgs;

type
  TForm1 = class(TForm)
    Image1: TImage;
    Button1: TButton;
    ProgressBar1: TProgressBar;
    Button2: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
var
  Bitmap: TBitmap;

procedure TForm1.Button1Click(Sender: TObject);
var C: TColor;
var i, j, R, G, B, H, W, t: integer;
    FR, FG, FB, GR, GG, GB : real;
begin
  W:= Form1.Image1.Width-1;
  H:= Form1.Image1.Height-1;
  for i:=1 to W do
  begin
    for j:=1 to H do
    begin
      C:=Form1.Image1.Canvas.Pixels[i,j];
      R:=GetRValue(C);
      G:=GetGValue(C);
      B:=GetBValue(C);
      FR:=1-R/255;
      FG:=1-G/255;
      FB:=1-B/255;
      if FR < 0.1 then
      GR:=1 else GR:=0.1/FR;
      if FG < 0.1 then
      GG:=1 else GG:=0.1/FG;
      if FB < 0.1 then
      GB:=1 else GB:=0.1/FB;
      R:=Round(GR*255);
      G:=Round(GG*255);
      B:=Round(GB*255);
      if R > 255 then R:=255;
      if G > 255 then G:=255;
      if B > 255 then B:=255;
      if R < 0 then R:=0;
      if G < 0 then G:=0;
      if B < 0 then B:=0;
      Form1.Image1.Canvas.Pixels[i,j]:=RGB(R,G,B);
      ProgressBar1.Position:=Round((i*H)/(W*H)*100);

    end;
  end;
  ShowMessage('Complete');
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  if Form1.OpenDialog1.Execute then
  begin
    bitmap := TBitmap.Create;
    bitmap.LoadFromFile(OpenDialog1.FileName);
    Form1.Image1.Canvas.Draw(0, 0, bitmap);
  end;
end;

end.